Y.E. Petuchov, A.A. Vodovozov
In paper a form of face of twist drills with curvilinear cutting edges, as well as sharpening of such drills are considered. Mathematical model of face depending on geometrical parameters of twist drill and optimum distribution a rake angle along the cutting edge is developed.
Keywords: twist drill, ssharpening of the drill, face, curvilinear cutting edges..